Types of SEO techniques?

[andreausa]

On-page technical things are:
Title
Heading Tags
Keyword Density
Meta Tags
Images
Word count per post
Internal linking
External linking
Write engaging content

Off page techniques are:
Guest blogging
Blog content
Profile creation
Local listing
Image sharing
Social bookmarking
Directory submission
Classified ads

[Nehal121]

SEO is the process of increasing visibility of the site using various SEO techniques.

Techniques of SEO:-
On Page Optimization
Off Page Optimization

Types of SEO:-
White Hat SEO
Black Hat SEO
Gray Hat SEO

[albertocosta]

Types of SEO techniques are - On Page SEO & Off Page SEO.

[kriystirose]

There are 3 types of SEO techniques are:

Grey Hat
White Hat
Black Hat

[lalitmittal]

There are two types of SEO techniques which are
On page SEO
Off page SEO